Systematic Metal Variation and Solvent and Hydrogen-Gas Storage in Supramolecular Nanoballs


  • We thank the Australian Research Council, the protein crystallography beamline staff at the Australian Synchrotron, the Advanced Photon Source supported by the Australian Synchrotron Research Program, funded by the Commonwealth of Australia under the Major National Research Facilities Program, the National Science Foundation/Department of Energy (HE9522232 and CHE0087817), the Argonne National Laboratory supported by the US Department of Energy, Basic Energy Sciences, Office of Science (DE-AC02-06CH11357) and Drs K. W. Chapman and G. J. Halder for their assistance.


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Play ball! A family of discrete metallo-supramolecular nanoballs (see picture) containing different divalent metals is produced by self-assembly. These species have porous structures, similar to metal–organic frameworks. Stepwise desolvation results in bare metal sites which can be functionalized with organic molecules; the interball cavities show high affinity for hydrogen gas.